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Loss of power... hiccup

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by hartford1993, Aug 18, 2019.

  1. Aug 18, 2019 #1
    hartford1993

    hartford1993 Bobtail Member

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    Aug 18, 2019
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    Thanks to everyone replying in advance. I need help with my
    2000 freighter cat 12 engine
    When driving the engine stops running for a very minute second then continues and gets power back at which sometimes stalling completely. Rare but has happened time to time down the road. I noticed in the loss the rpm gauge revs up higher during the hiccup. I have no clue and never had a big truck before. Any ideas please let me know. I'm starting with changing out the 2 fuel filters.
     
    hartford1993, Aug 18, 2019
    hartford1993, Aug 18, 2019
    #1
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  3. Aug 18, 2019 #2
    xsetra

    xsetra Road Train Member

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    Does this happen after a bump in the road. It sounds like you're having a dead short in the electrical system.

    Usually when filters get dirty they stay plugged up.
     
    xsetra, Aug 18, 2019
    xsetra, Aug 18, 2019
    #2
  4. Aug 18, 2019 #3
    Deere hunter

    Deere hunter Road Train Member

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    Definitely electrical !!
     
    Deere hunter, Aug 18, 2019
    Deere hunter, Aug 18, 2019
    #3
  5. Aug 18, 2019 #4
    pavrom

    pavrom Road Train Member

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    Could be fuel filter ...had same issue
     
    pavrom, Aug 18, 2019
    pavrom, Aug 18, 2019
    #4
  6. Aug 19, 2019 #6
    FreightyAK

    FreightyAK Bobtail Member

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    Aug 7, 2018
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    I had a 2001 freightliner classic that had similar problem. It didnt have a cat but engine type mat be irrelevant. Turned out to be the metal thing under the top of the battery box was loose. It would short on the battery. I was way up north and thought I was gonna be stranded. Turned out to be an easy fix. Check your grounds as well.
     
    FreightyAK, Aug 19, 2019
    FreightyAK, Aug 19, 2019
    #6
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